Transom-lifter



2 Sheets Sheet 2.

(No Model.)

O. C. RIXSON.

TRANSOM LIFTER.

Patented Mar. 22, 1898.

l/Vl/ENTOR Q ATTORNEYS.

.pletely hidden from View.

UNITED STATE'S' PATENT `FFICE.

OSCAR C. RIXSOlSL OF CI-IICAGrO, ILLINOIS.

TRANSOM-LIFTER.

SPECIFICATION forming part of Letters Patent No. 601,104, dated March 22, 1898.

Application filed February 15, 1897. 4 Serial No. 623,&46. (No model.)

.To all whom it may concern:

Be it known that I, OSCAR C. RIXsoN, o Chicago, in the County of Cook and State of Illinois, have inventeda new and Improved Transom-Lifter, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved transom-lifter which is simple and durable in Construction, easily manipulated, applicable to transoms hinged either at the top, middle, or bottom, and arranged so' as to ,be completely hidden from V1eW.

Reference is to be had to the accompanyingdrawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Fignre 1 is afront elevation of the improvement with parts broken ont and applied 'to a transom hinged at the bottom. Fig. 2 is a transve'se section of the same on the line 2 2 of Fig. 1 and with parts broken out. Fig. 3 is a sectional plan view of the same on the line'3 3 of Fig. 1.` Fig. l is a similar view of the improvement, showing the rack-bar arranged in the door-jamb. Fig. 5 is a transverse section of the improvement as ap'plied to a transom hinged at the middle or top. Fig. 6 is a sectional plan View of the same on the line 6 6 of Fig. View of the same on the line 7 7 of Fig. 6. Fig. 8 is a front elevation of a handle for a heavy transom, and Fig. 9 is a transverse section of the same on the line 9 9 of Fig. 8.

In the arrangement shown in Figs. 1, 2, and 3 the transom A is connected at its lower end by a hinge B with a transom-bar C, and one of 'the sides of the said transom is pivotally connected by a link D with a vertically-disposed rack-bar E, fitted to slide in a suitable gudeway formed in the door-casing F-for instance, as shown in Fig. 3 in the door-stop F' and as shown in Fig. tin the door-jamb 1 but in such a manner that the bar is com- The lower end of the rack-bar E is provided with rack-teeth E', in mesh with the gear-wheel Gr, j ournaled in a suitable casingH, attached to the door-casing, preferably the jamb F and this gear-wheel Gr is in mesh with a pinion I, journaled on arms J, fulcrumed loosely on the shaft for the Fig. 7 is a sectional fronte gear -wheel Gr. The polygonal bore of the pinion I is loosely en gaged by a correspondinglysha'ped spindle K, fitted to slide in the said pinion and adapted to turn the same, so as to rotate the gear-wheel G to move the rack-bar E up or down to cause a swinging of the transom A into a closed or open position by means of the link D. The spindle K is pivotally connected by a pin K' with an enlarged spin- .dle part K mounted to turn and to' slide in ously explained. On the spindle part K is arranged a lock-pin -K adapted to engage notches L' formed in the outer end of the escutcheon L, so as to lock the spindlein place to preventthe same from being turned Without first pulling the spindle outward, as before mentioned.

Now by reference to Figs. 2 and 3 it will be seen that when the lock-pin K is in en`- gagement with the notches L' the pin K," eX- tends a suitable distance from the inner face of the escutcheon L, and when the operator desires to open or close the transom Ahe first pulls on the handle K to move the pin K out of the notches L', the outward movement beinglimited by the pin K' moving against the inner face of the escutcheon L. When it is desired to ,lock the device in place against operation 'by any unauthorized person, I provide a lock N on the lower portion of the escntcheon L, and the bolt of this lock is adapted to shoot into the path of the pin K', when the latter is in an outermost position, to prevent the spindle K from being turned.

In the modified forms shown in Figs. 5, 6, and 7 the transom A' is hinged at its upper end or at the middle to the transom-casing, and one side of the transom is pivotally connected by the link D' with the rack-bar E formed at its lower end with teeth E directly engaged by a pinion I', engaged by a spindle K carrying a handle K normally resting in a recess formed in the escutcheon L but fitted to be swung outward to permit the operator to turn the spindle K so as to revolve the pinion I' to impart an up-anddown sliding motion to the rack-barE so as to open and close the transom A'.

As shown in Fig. G, the rack-bar E is fitted to slide in the door-stop F and the spindle K is journaled in a suitable casing attached to the jamb F of the door-casing and is free to slide laterally to allow the turning of the handle K as before explained.

As shown in Figs. 8 and 9, the handle K is pivotally connected with the spindle K and normally engages a slot in an annular offset If, formed integrally on the front face of the escutcheon L lVhen it is desired to turn the spindle K the operatorfirst swings the handle K into an angular position and then pulls out the spindle K so that the handle clears the outer edge of the projection L when turning the handle for imparting a rotary motion to the spindle K and the pinion for Operating the rack-bar.

Now by the arrangement described the rack-bar is completely hidden from view and is not liable to be broken and does not form an unsightly obstruction on the outside of the door-casing, as is frequently the case with transom-lifters heretofore constructed.

By having the arms J carrying the pinion I, I am enabled to engage the pinion at any desired portion of the gear-wheel G, so as to bring the spindle K into the proper position for the escutcheon, so that the latter can be secured at the proper place to the door-casing, it being understood that the swinging of the arms J to the desired position does not move the pinion out of mesh with the gearwheel G.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent- 1. In a transom-lifter, the combination with a guideway within the door-casing, of a rackbar mounted to slide in the said guideway, a link pivotally connecti'ng the rack-bar with the transom,a gear-wheel in m esh with the said rack-bar, a pinion in mesh with the said gearwheel, and a spindle en gaging the said pinion and under the control of the operator, substantially as shown and described.

2. In a transom-lifter, the combination With a guideway within the door-casing, of a rackbar mounted to slide in the said guideway, a link pivotally connecting the rack-bar with the transom, a gear-wheel in mesh with the said rack-bar, a pinion in mesh with the said gear-wheel, a spindle engaging the said pinion and under the control of the operator, and means substantially as described, for looking the said spindle in place, as set forth.

3. A transom-lifter provided with a rackbar connected by a link with the transom, a gear-wheel in mesh with the said rack-bar, a pinion in mesh With the said gear-wheel, arms fulcrumed on the shaft of the said gearwheel and forming bearings for the said pinion, and a spindle engaging the said pinion for turning the latter, substantially as shown and described.

4. A transom-lifter provided with a rackbar connected by a link with the transom, a gear-wheel in mesh with the said rack-bar, a pinion in mesh with the said gear-wheel, arms fulcrnmed on the shaft of the said gearwheel and forming bearings for the said pinion, a spindle engaging the said pinion for turning the latter, and an escutcheon in which the said spindle is mounted to turn and to slide, substantially as shown and described.

V OSCAR C. RIXSON.

YVitnesses:

IRVING DICKINSON, W. A. BALCH. 

